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Finding the Fourth Proportional to 11,349.78, 17,022.78 and 3,556.50

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Solution

The fourth proportional to 11,349.78, 17,022.78 and 3,556.50 is: 5,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.78 : 17,022.78 = 3,556.50 : x
  2. Step 2: Convert to fraction form
    11,349.78/17,022.78 = 3,556.50/x
  3. Step 3: Cross multiply
    11,349.78x = 17,022.78 × 3,556.50
  4. Step 4: Simplify right side
    11,349.78x = 60,541,517.07
  5. Step 5: Solve for x
    x = 60,541,517.07/11,349.78
  6. Step 6: Final answer
    x = 5,334.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.